LIGHT-EMITTING APPARATUS AND ILLUMINATING APPARATUS

摘要

A light-emitting apparatus includes a light-emitting element, a base body, a reflection member and a fluorescent material layer. A cross section of the inner surface of the reflection member cut by a virtual plane including a virtual axis penetrating a center of the inner surface and perpendicular to the upper principal surface of the base body has a sectional profile defined by a curved line expressed by the following formula, and the inner surface of the reflection member is a curved surface obtained by rotating the curved line about the virtual axis: Z=(cr²)/[1+{1-(1+k)c²r²}^1/2] (where -10<=k<=-0.001, 0.001<=c<=10). An angle theta₁ which is made by an upper surface of the fluorescent material layer and a line which connects one corner of a light-emitting portion of the light emitting element with an uppermost position of the inner surface and is tangent to the one corner, is given as theta₁>=90°-sin^-1 (1/n₁).